token.app › Compare › Gemini 3.1 Pro Preview vs DeepSeek V4 Flash 0731
Gemini 3.1 Pro Preview vs DeepSeek V4 Flash 0731
Gemini 3.1 Pro Preview leads on 5 of 5 shared benchmarks. DeepSeek V4 Flash 0731 is 40× cheaper per token on a blended 3:1 basis.
Head to head
Blended price uses a 3:1 input:output mix
| Gemini 3.1 Pro Preview | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Provider | DeepSeek | |
| Input $/1M | $2.00 | $0.090 |
| Output $/1M | $12.00 | $0.180 |
| Blended $/1M | $4.50 | $0.113 |
| Context window | 1.0M | 1.0M |
| Max output | 66K | 384K |
| Released | Feb 2026 | Jul 2026 |
| Licence | Proprietary | Open weights |
| GPQA Diamond | 94.4% | 91.0% |
| FrontierMath T1–3 | 59.6% | 57.5% |
| FrontierMath T4 | 26.8% | 24.4% |
| SimpleQA Verified | 77.3% | 34.7% |
| OTIS Mock AIME | 95.6% | 94.4% |
Benchmark scores independently run and published by Epoch AI, 'AI Benchmarking Hub', used under CC BY 4.0. Only benchmarks with a score for BOTH models are compared.
Choose Gemini 3.1 Pro Preview if…
- Higher GPQA Diamond (94.4% vs 91.0%)
- Higher FrontierMath T1–3 (59.6% vs 57.5%)
- Higher FrontierMath T4 (26.8% vs 24.4%)
- Higher SimpleQA Verified (77.3% vs 34.7%)
Choose DeepSeek V4 Flash 0731 if…
- Costs less per token — $0.113 vs $4.50 blended
- Open weights — self-hostable
- Newer model (released Jul 2026)
FAQ
Which is better, Gemini 3.1 Pro Preview or DeepSeek V4 Flash 0731?
Across the 5 benchmarks both models have independently-run scores for, Gemini 3.1 Pro Preview leads on 5 and DeepSeek V4 Flash 0731 leads on 0. Benchmarks are one input — price and context window are on this page too.
Is Gemini 3.1 Pro Preview cheaper than DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 is cheaper: $0.113 versus $4.50 per million tokens blended at 3:1 input:output. Input alone: $2.00 vs $0.090. Output alone: $12.00 vs $0.180.
What context windows do Gemini 3.1 Pro Preview and DeepSeek V4 Flash 0731 have?
Gemini 3.1 Pro Preview: 1,048,576 tokens. DeepSeek V4 Flash 0731: 1,048,576 tokens.
Who makes Gemini 3.1 Pro Preview and DeepSeek V4 Flash 0731?
Gemini 3.1 Pro Preview is made by Google. DeepSeek V4 Flash 0731 is made by DeepSeek.
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